Luminous electric heater.



F. KUHN & F. E. SHAILOR.

LUMINOUS ELECTRIC HEATER. APPLICATION FILED SEPT.9, 1915.

4 1 ,231 ,750. Patented July 3, 1917.

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FRANK KUfiN AIN'D FRANK E. SHAILOB, OF DETROIT, MICHIGAN, ASSIGNORS T AMERI- CAN ELECTRICAL HEATER COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF Patented July 3, 1917.

MICHIGAN.

LUMINOUS ELECTRIC HEATER.

1,231, 750. Specification of Letters Patent.

Application filed September 9, 1915. Serial No. 49,726.

r I To all 'wkom'ic't may concern.

Be it known that we, FRANK KUHN and FRANK E. SHAILOR, citizens of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Luminous Electric Heaters, of which the following is a specification, reference being had therein to the accompanying drawings.

It is the object of the invention to obtain an electric heater in which the heat is distributed from a plurality of luminous points, and in which the luminous effect is magnified. To this end the invention comprises the construction as hereinafter set forth. a

In the drawing:

Figure 1 is a cross section through the heater;

Fig. 2 is an elevation of the reflector surface having.. the luminous heat-radiating points distributed thereover; and i Fig. 3 is a perspective view of a portion of the casing and one of the supporting leg members showing the detachable engagement therebetweem A is a casing, preferably formed of sheet metal, and having a front B with a central open panel. C is a reflector having ob liquely-inclined sides extending inward into the casing, and D is a bottom reflector, preferably formed with two angling portions D and D The reflector D has distributed over the area thereof a plurality of luminous heatradiating points. These are preferably formed of conical coils E of a resistor, which are mounted upon an insulator support F and are located in recesses G in said reflector, preferably of polygonal form and havmg inclined sides. The resistor coils E are formed either in a continuous resistor or are electrically connected in series with each other, and as shown these coils are arranged in parallel longitudinal series respectively in the portions D andD of the reflector. The insulators F are preferably clamped between apertured sheet metal top and bottom plates H, which are secured to the reflector D. The terminals of the'resistor are connected to terminal contact members I which are mounted on insulator supports at one end of the casing.

To facilitate thanon'struction and assembly the reflectors C and D are formed of separate members bolted or otherwise secured to ach other, and the outer casing A is formed of end members A and a longitudinally-extending member A The latter is also bolted or otherwise secured to the 1 front plate B, and centrally of its top is provided with a handle'J for carrying. K are ornamental flanges which are formed of the metal in the cut-away panel of the front member B. L are supporting legs struck out from sheet metal and are of angle section, said legs being formed with top flanges M having projecting tongues. N and N for engaging struck-out loops 0 and O on the casing member A and with a projecting tongue N for engaging a struck-0ut loop 0 on the casing. This permits of quickly assembling the legs and engaging the tongues N into the loops 0; and of also dismounting the same for compactness in shipment.

In operation, when the current is passed through the resistor, each of the coils E will become luminous and will radiate both light and heat. The many reflecting faces formed by the polygonal recessesand also the reflection in the side member C will greatly increase the-luminous effect.

To protect the heater and to avoid accldental short circuiting a grid P is arranged across the open panel.

What we claim as our invention 1s 1. A luminous heater, comprising a resistor having a series of conical coils, and a reflector member having a series of individual polygonal pockets in each of which one of said coils is located.

2. A luminous heater, comprising a resistor having a" series of exposed coils, a reflector member having a series of individual polygonal pockets in each of which one of said coils is located, and insulator supports for said coils forming the bottom of said pockets.

'3. A luminous heater, comprising a resistor having a series of close coils spaced from'each other, a reflector member having a series of individual pockets in each of which one of said coils is located, and a casing having oblique reflector sides, said firstmentioned reflector member being located at the bottom of the recess formed by said sides.

4. A luminous heater, comprising a casmg having an inclined front with an open panel and having inwardly-extending ob lique reflector sides forminga recess, a reflector at the bottom of said recess, and a resistor having a series of conical coils'distributed over said bottom reflector surface and forming luminous points.

5. A luminous heater, comprising a casing having an inclined front with a central open panel, inwardly-extending Oblique reflector faces forming-a recess, a reflector bottom for said recess having a series of individual polygonal depressions therein, and a resistor having a series of coils, each of which is in one of said individual polygonal receses.

V 6. A luminous heater, comprising a-casing having a front with an open panel, obliquely-inclined reflectors extending inward at the sides of the opening, a reflector bottom having angling portions each provided with a series of depressed pockets, and a resistor having a series of coils located in the respective pockets. Y

7. ,A luminous heater, comprising a .cas-' ing having a luminous heater element located therewithin, and integral supporting legs for said casing formed of sheet metal and of angle section, said legs being formed with top flanges having projecting tongues for detachably engaging struck-out loops in said casing.

In testimony whereof we afiix our signatures in presence of two witnesses.

FRANK KUHN. FRANK E. SHAILOR.

Witnesses:

HARRY W. LUYoKx, JAMES E. DUFFEY. 

